アルミン酸ナトリウム水溶液中でのマグネシウムの陽極酸化
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概要
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A thick anodic oxide film consists of an aluminum hydrate was formed on a magnesium plate by anodizing in sodium aluminate solution. Scanning electron micrography, X-ray diffraction, IRRS and interfacial impedance measurements were made to examine structural changes of the film during sealing. The corrosion resistance was examined on the basis of polarization curves. The film before sealing is of network and has a number of cracks. It consists of an aluminum hydrate Al(OH)3. This network film transforms into needle-like boehmite Al•O•OH free from cracks by sealing. Prolonged sealing results in a dense and isolating boehmite film having further resistance to corrosion.
- 一般社団法人 軽金属学会の論文
一般社団法人 軽金属学会 | 論文
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